v3.25.2
Document And Entity Information - USD ($)
 12 Months Ended
May 31, 2025
Jul. 24, 2025
Nov. 29, 2023
Document Information [Line Items]      
Entity Central Index Key 0001731348    
Entity Registrant Name Tilray Brands, Inc.    
Amendment Flag false    
Current Fiscal Year End Date --05-31    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2025    
Document Type 10-K    
Document Annual Report true    
Document Period End Date May 31, 2025    
Document Transition Report false    
Entity File Number 001-38594    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 82-4310622    
Entity Address, Address Line One 265 Talbot Street West    
Entity Address, City or Town Leamington    
Entity Address, State or Province ON    
Entity Address, Postal Zip Code N8H 5L4    
City Area Code 844    
Local Phone Number 845-7291    
Title of 12(b) Security Common Stock, $0.0001 par value per share    
Trading Symbol TLRY    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 1,200,000,000
Entity Common Stock, Shares Outstanding   1,100,530,099  
Auditor Name PricewaterhouseCoopers LLP    
Auditor Location Toronto, Canada    
Auditor Firm ID 271